“In the morning

Meaning

Ain’t We Got Fun? is a piece of music published in 1921. The track’s reference here is ironic, for it has been suggested that the song is about working-class unrest. George Orwell wrote:

All through the war and for a little time afterwards there had been high wages and abundant employment; things were now returning to something worse than normal, and naturally the working class resisted. The men who had fought had been lured into the army by gaudy promises, and they were coming home to a world where there were no jobs and not even any houses. Moreover, they had been at war and were coming home with a soldier’s attitude to life, which is fundamentally, in spite of discipline, a lawless attitude. There was a turbulent feeling in the air.

This from a track played in front of Gatsby and Daisy, both of whom possess massive wealth.